hello~ i am a newbie, just got a q9650 with rampage formula

but there is a problem, i have 4hdd where 3hdd have vista in it

so i found that if i need to boot correctly, i must disable the 2 hdd drive in the boot drive selection

otherwise i get nothing showed when i power on the computer

now the problem is, when i try to overclock, no matter whats the setting is, i can boot after the first time modification but not the second time

like sometime i can boot up with 467*9 and i want to set the voltage lower so i enter the bios again, when i set the voltage lower i cant boot up

so i thought maybe the voltage is not enough, then i clear cmos and re-do the above thing, on the second modification, i change nothing in the bios

but it just cant boot up, so whats the problem?

i even tried disabling the other sata drives except my main hdd, putting 1.42v for vcore, 1.45 for nb etc

so i thing the voltage should be enough, i just cant figure out why the bios only boot once

thanks